Gilles Massardier Books

Les heros du Moyen age

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Clovis, Arthur, Charlemagne, Richard Coeur de Lion, Jeanne d'Arc, Bayard... Autant de noms illustres qui portent en eux l'écho du Moyen Age. C'était le temps des cathédrales et des palais, des prin...

Romains Romaines

By Beatrice Garel

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L enigme des vacances

By L Enigme Des Vacances Nathan

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L enigme des vacances

By L Enigme Des Vacances Nathan

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Contes et Recits des Jeux olympiques

By Gilles Massardier, Nicolas Thers

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Contes et recits des grandes enigmes de l histoire

By Gilles Massardier, Vincent Rio

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Contes et Recits des heros du Moyen Age

By Gilles Massardier, Joann Sfar

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Autoritarismes democratiques et democraties autoritaires au XXIe siecle

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Les Fabuleuses histoires de Merlin et du Roi Arthur

By Gilles Massardier, Benjamin Bachelier

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Cuentos y leyendas de los Juegos Olimpicos

By Gilles Massardier, Fuencisla Del Amo

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.